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60/45/30/9/6/3/1/0.5 Mic Diamond Lapping Film for Polishing Fiber Optic Connectors Metal Gemstones Similar to 3m 661, Find Details and Price about Lapping Film Diamond Lapping Film from 60/45/30/9/6/3/1/0.5 Mic Diamond Lapping Film for Polishing Fiber Optic Connectors Metal Gemstones Similar to 3m 661 - Shaoxing Ziyuan Polishing Co., Ltd.